“Go-To” Maksutov-Cassegrain
D I G I M A X - 9 0
out accurately by the Skyscan Az. Further accuracy enhancement is not necessary.
The following provides a step-by-step procedure on how to perform PAE:
1.
Use the direction keys to center the last go-to object, then go to the next step (this
step may be skipped)
2.
Press and hold down the ESC key for 2 seconds. The hand control will display
“Re-center” and the name of the reference object will appear in a blinking mode (3
times). If the go-to command is sent from the planetarium software, instead of the
name of the object, the hand control will display “Last goto object”.
3.
Make sure that the reference object is still in the center of the view and press EN-
TER. If you do not wish to record the result, press ESC to abort the operation. After
pressing ENTER, the Skyscan will record the amount of pointing inaccuracy and
recalculate the model of the sky. Now the pointing accuracy of this particular part of
the sky should be greatly improved.
NOTE:
The result for the star alignment and PAE is stored in the hand control even
after the power has been shut off. You will only need to perform the star alignment
once as long as these two criteria are met: 1. The telescope is moved to its home
position (Park the telescope) before turning off the power. 2. The telescope setup,
including the mount, has not been moved.
Accessory change is acceptable as long as it is done with great caution. When the
hand control is turned on for the next time, make sure that the time entered dur-
ing initial setup is based on the same source as last time. For example, if you enter
the time on your watch during this observing session, the time you enter next time
should also be read from your watch.
OBJECT CATALOGUE
Object database in the Skyscan AZ
The Skyscan Az comes with a vast database with over 42,900 objects coordinates
and information all available in the palm of your hand. The database contains the fol-
lowing catalogs:
Solar system
:
- The other 8 planets of our solar system plus the Moon
Named star:
A list of 212 best known stars from the Skyscan Az database
*NGC:
7,840 of the brightest deep sky objects from the Revised New General Cata-
log.
IC:
5,386 of standard stars and deep sky objects from the Indexed Catalog.
MESSIER:
Complete list of 110 Messier objects
Caldwell:
complete list of 109 Caldwell objects
Double Stars:
Includes 55 well-known double stars
